I hope this helps you
θ/360.2.π. 11=9
θ=9×180/34.54
θ=46.9°
You have to divide the 5 and 5x by 5 add your variables together in alpha order=1
Answer: 2007
Step-by-step explanation:
One must use the division property
The 2 interior angles add to the exterior angle
26+13=x
39=x
x=39°
because
remember, all angles add to 180
26+13+BCA=180
39+BCA=180
minus 39 both sides
BCA=141
look, we want x
BC is a striaign line which is 180
BCA+x=180
141+x=180
minus 141 from both sides
x=39°